It’s been reported that Jimi Jamison, lead singer of ’80s power ballad purveyors Survivor, died Sunday night at the age of 63 after suffering a heart attack in his home. In addition to his Cobra and Survivor discography, Jamison contributed to famous film and television soundtracks over the years including Rocky IV, The Karate Kid, and more.

Jamison sang lead on a number of memorable mid-’80s movie theme songs, most notably “Burning Heart” from Rocky IV and “The Moment Of Truth” (which played over the closing credits of The Karate Kid). The former anthem, in particular, is one of the most beloved of its era; outside of Sting’s “Russians,” it is the song that most overtly states the prevailing sentiments of the Reagan v. Gorbachev era (and, by extension, the entire plot of Rocky IV). “Bravely we hope against all hope / There is so much at stake, seems our freedom’s up against the ropes” and “Is it East versus West, or man against man?” are lyrics that perfectly encapsulated the feelings (at the time) of many Gen Xers—it went all the way to #2 on the charts (!)—and serves more or less as narration when Rocky Balboa’s plane first touches down in Soviet Russia (see video below). Was it jingoistic? Maybe. Awesome? Totally!

It’s worth noting that Jamison did NOT sing lead on Survivor’s 1982 multiplatinum smash “Eye Of The Tiger”; those vocal duties were handled by Dave Bickler, who was forced to leave the group after developing vocal issues. However, Jamison sang lead on all of the other Survivor songs you know by heart: “The Search Is Over,” “High On You,” “Is This Love” and “I Can’t Hold Back.”

Here’s where you can stream Jamison’s essential soundtrack appearances from over the years: